Sandown, PO36
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
P D Builders is an established and experienced local extension builder in Sandown. Please contact us for a free, no obligation quote and competitiv...
Experienced extension builder ready to quote for your work. STONEHAM CONSTRUCTION LIMITED is the best extension builder in Sandown. No obligation f...
From £17,668
MJP Building Services are here to help customers who need an Extension Builder in Sandown. We offer a competitive rate to complete all your extensi...
From £17,708
Relax... you have found a reliable extension builder in Sandown. JP HILLMAN CARPTRY & GEN BUILD is a friendly and reliable company based in Sandown...
From £17,388
Need an Extension Builder in Sandown? DJR CONSTRUCTION has been helping local clients (20 mile radius) with their extension buildering jobs for man...
From £17,332
Sandown, PO36
Diamond Wight Building is an established and experienced local extension builder in Sandown. Please contact us for a free, no obligation quote and ...
From £17,548
Brian Oxford
for a reliable friendly family business catering for the clients wishes.

Underpinning ranges from £16,844 (G A Headlam based in PO38) to £17,708 (JP HILLMAN CARPTRY & GEN BUILD based in PO30), but the final cost will depend on the method of underpinning used, how much of your foundations need underpinning and where you live.
Comparing extension builders estimates for underpinning gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
Get quotes to underpin your home in Sandown by posting a job with HaMuch and we will send it to extension builders in Sandown.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Ryde | £34 | £255 |
| Underpin A Building near Isle of Wight | £34 | £246 |
| Underpin A Building near Gosport | £35 | £246 |
| Underpin A Building near Lee-on-the-Solent | £35 | £249 |
| Underpin A Building near Portsmouth | £36 | £250 |
| Underpin A Building near Fareham | £35 | £250 |
| Underpin A Building near Locks Heath | £33 | £240 |
| Underpin A Building near Havant & Waterloo | £35 | £248 |
| Underpin A Building near Havant | £35 | £249 |
| Underpin A Building near Waterlooville | £36 | £250 |
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Underpin a building - £17,396

Two storey extension - £87,844

Build a timber frame extension - £25,896

Build a swimming pool - £80,896

Single storey extension - £52,920

Side return extension - £40,330

Install an RSJ - £2,096

Outbuilding - £9,896

Build a Mansard loft conversion - £51,896

Loft conversion - £32,775

Build a kitchen extension - £41,896

Hip to gable loft conversion - £41,896

Granny annexe - £86,896

Garden office - £9,896

Convert a Garage - £15,896

Garage - £18,396

Build a flat roof extension - £21,896

Build a dormer loft conversion - £41,896

Concrete foundations - £6,146

Convert a bungalow loft - £28,896

Convert a basement - £36,330